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In the X-ray fluorescence analysis of steels, a correction method is usually used to eliminate absorptionenhancement effects. It is a desirable that the correction factors should be common to all experimental conditions and therefore the fluorescent X-ray intensity should be specified in a common unit. For this purpose, the JIS method converts the fluorescent X-ray intensity into a tentative analytical value from the calibration curve of binary alloys, while the a-correction methods employs the ratio of the intensity of an analytical sample to that of a pure substance for the fluorescent X-ray intensity. In this report a detailed comparison of these methods is made, and the good and bad points of the JIS method discussed. 0 Heyden

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In the x-ray fluorescence analysis of steels, a correction method is usually used so as to eliminate interfering spectrum overlap and absorption-enhancement effects. In correcting the former, the intensity correction method, by which measured x-ray intensity is corrected, is widely used. In the JIS method of x-ray fluorescence analysis of steels, however, the measured x-ray intensity is first converted into a tentative analytical value, and this value is then corrected for absorption-enhancement effects and finally for interfering spectrum overlap. In this report, a detailed comparison of both methods is made, and the characteristics of the JIS method are discussed.